CN112393711B - Pole tower settlement and inclination monitoring system based on Beidou positioning and monitoring method thereof - Google Patents
Pole tower settlement and inclination monitoring system based on Beidou positioning and monitoring method thereof Download PDFInfo
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- CN112393711B CN112393711B CN202011278639.8A CN202011278639A CN112393711B CN 112393711 B CN112393711 B CN 112393711B CN 202011278639 A CN202011278639 A CN 202011278639A CN 112393711 B CN112393711 B CN 112393711B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/34—Power consumption
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/40—Correcting position, velocity or attitude
- G01S19/41—Differential correction, e.g. DGPS [differential GPS]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/43—Determining position using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/53—Determining attitude
- G01S19/54—Determining attitude using carrier phase measurements; using long or short baseline interferometry
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- Radio Relay Systems (AREA)
Abstract
The invention discloses a pole tower settlement and inclination monitoring system and a monitoring method thereof based on Beidou positioning, wherein the monitoring method comprises the following steps: the system comprises a monitoring device, a Beidou reference station and a public network base station, wherein the monitoring device acquires horizontal and vertical displacement and inclination angle data of a tower through a Beidou terminal; the Beidou reference station is used for high-precision positioning and checking; the public network base station processes the receiving and sending of mobile signals through a wireless modem, a plurality of public network base stations and a Beidou positioning system in a monitoring system are arranged in a tower area and combined with each other to form a honeycomb network, the total propagation delay of the signals in a loop is obtained according to the difference between the receiving time and the transmitting time, and the position relation is in one-to-one correspondence through the conversion of two coordinates; according to the invention, through Beidou carrier phase difference measurement and attitude measurement, the inclination angle values of the power transmission line tower in the down-line direction and the transverse direction are monitored, and the early warning capability of the power transmission line tower on serious settlement and inclination risk points is improved.
Description
Technical Field
The invention relates to an electric power monitoring technology, in particular to a pole tower settlement inclination monitoring system based on Beidou positioning and a monitoring method thereof.
Background
Along with the technological progress and the modern development of society, the quality and the demand of people's life are continuously improved, the power consumption is also greatly improved, this puts forward higher and higher requirements to the security and the reliability performance of power supply of electric wire netting, the transmission and the distribution of electric power can not leave the transmission line, but the shaft tower receives the influence of natural factors such as wind, frost, rain and snow and the like and the artificial factors such as the underground goaf with various forms caused by mineral mining in recent years, the light person can cause the fracture, the slope, the shaft tower deformation, the heavy person causes the shaft tower to topple over and collapse, the safe operation of the transmission network causes great threat, and the loss is caused to people's life and property.
With the increase of the complexity of an electric power system, the occurrence of extreme natural disasters such as typhoons, geological subsidence and the like and the increase of the dependence degree of the society on electric energy, the power failure risk and the social and economic influences thereof are increased, and due to the influences of natural disasters (typhoons, storms) and geological factors, the problems of inclination, settlement, displacement and the like of a transmission tower occur, so that the normal operation of the transmission line is often directly influenced by the lodging of the tower, the line tension and the sag changes caused by the problems.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a shaft tower subsides slope monitoring system based on big dipper location to solve above-mentioned problem. The technical scheme is as follows: the utility model provides a shaft tower settlement slope monitoring system based on big dipper location, includes:
the monitoring device acquires the horizontal vertical displacement and inclination angle data of the tower through the Beidou terminal;
the Beidou reference station is used for high-precision positioning and checking;
and the public network base station is used for carrying out signal transmission.
According to one aspect of the invention, the monitoring device comprises a solar photovoltaic panel, a microcontroller, a Beidou positioning system and a communication circuit; the solar photovoltaic panel converts energy into electric energy through the control circuit; the microcontroller and the communication circuit carry out circuit calibration processing and signal access processing on peripheral signals; the Beidou positioning system comprises a Beidou antenna and a Beidou receiver, wherein the Beidou antenna receives and demodulates electromagnetic wave signals transmitted by a satellite into signals identified by the receiver; and the Beidou receiver converts the signals received by the antenna so as to calculate the position coordinate.
According to one aspect of the invention, the solar photovoltaic panels are arranged on two sides of the monitoring device, so that the solar photovoltaic panels can be fully contacted with sunlight, and energy storage is facilitated; the monitoring device is fixed on the transmission tower through the base.
According to one aspect of the invention, the public network base stations process the receiving and sending of mobile signals through the wireless modem, in a tower area, a plurality of public network base stations and a Beidou positioning system in a monitoring system mutually form a cellular network, and the transmission of mobile communication signals is achieved by controlling the mutual transmission and receiving of signals between the Beidou antenna and the Beidou receiver.
According to one aspect of the invention, the pole tower settlement inclination monitoring method based on Beidou positioning is characterized by comprising the following steps of:
and 2, checking the positioning parameters.
According to one aspect of the present invention, in step 1, the loop delay of signal propagation is completed through data information transmission between a monitoring device and a beidou receiver, the monitoring device transmits an outbound signal with a time stamp by transmitting the outbound signal, the beidou receiver receives the outbound signal, transmits an inbound signal after detecting a fixed time stamp, and after receiving the inbound signal, the monitoring device obtains the total propagation delay of the signal in the loop according to the difference between the receiving time and the transmitting time, further obtaining the following manner:
in the formula, T General assembly Represents the total propagation delay; t is 1 Signal propagation time delay of representation monitoring devices and Beidou receiver
Delay; 2D represents the distance between the antennas; c represents the speed of light; t is a unit of 2 The time length from the Beidou receiver to the antenna port of the Beidou receiver is represented.
According to an aspect of the present invention, the positioning calibration coordinates in step 2 are coordinates in the earth system, and are calculated after two times of coordinate transformation into the center of gravity coordinate system, where the transformation formula is as follows:
wherein x, y and z represent coordinates of a geodetic system; h is 0 Represents a translation; z is a radical of 1 Denotes z coordinate minus h 0 Obtaining the result by translation;
further translating according to coordinates under a geodetic system by h 0 Rotating the carrier course angle, the pitch angle and the roll angle for three times to obtain a coordinate system of the carrier; the expression mode is as follows:
in the formula, x 2 、y 2 、z 2 Representing the angular coordinate of the course of the carrier; x is the number of 3 、y 3 、z 3 Representing a pitch angle coordinate; x is the number of 4 、y 4 、z 4 Representing roll angle coordinates; alpha is alpha f Representing an aircraft heading angle; beta is a f Represents a pitch angle; gamma ray f The roll angle is indicated.
According to one aspect of the invention, the tilt angle in step 1 is calculated as follows:
η＝1000tan(|α|)
wherein η represents the amount of tilt; α represents the tilt angle of the entire tower.
According to one aspect of the invention, the pole tower settlement and inclination monitoring method comprises the following steps:
step 3, judging the running state of the system through system self-checking, and closing the tower inclination monitoring system if the system is abnormal; if the result is normal, the next step is carried out;
step 4, judging the running state of the communication circuit, and closing the tower inclination monitoring system if the communication circuit is abnormal; if the result is normal, the next step is carried out;
step 5, collecting pole tower settlement and inclination monitoring information;
step 6, judging the command receiving of the main node, if no command exists, returning to the step 5, and if the command exists, performing the next step;
step 7, judging the running state of the network; if the result is normal, the next step is carried out, and if the result is abnormal, the step 2 is fed back;
and 8, sending tower settlement and inclination monitoring data.
Has the advantages that: the invention designs a pole tower settlement inclination monitoring system based on Beidou positioning and a monitoring method thereof, wherein a Beidou system and a trunking communication base station are used as communication links, a sensor technology is integrated for design, the inclination angle values and the settlement amounts of the downline direction and the transverse direction of a power transmission line pole tower are monitored through Beidou carrier phase difference measurement and attitude measurement, the early warning capability of serious risk points of settlement inclination of the power transmission line pole tower is improved, the operation safety of a power grid is ensured, the low power consumption state and the acquisition state are converted through timing starting, the long-term stable operation can be ensured, and the system adopts a solar power supply mode, so that the system can be continuously operated for a long time in an outdoor environment. The system can transmit real-time field monitoring data and early warning information to the monitoring center in real time so as to facilitate remote online monitoring of the system.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a diagram of the control circuit of the noise detector of the present invention.
The reference signs are: the solar photovoltaic panel comprises a solar photovoltaic panel 1 and a monitoring device 2.
Detailed Description
In this embodiment, a shaft tower settlement slope monitoring system based on big dipper location includes:
the monitoring device is used for acquiring the horizontal vertical displacement and inclination angle data of the tower through the Beidou terminal;
the Beidou reference station is used for high-precision positioning and checking;
and the public network base station is used for carrying out signal transmission.
In a further embodiment, the monitoring device comprises a solar photovoltaic panel, a microcontroller, a Beidou positioning system and a communication circuit; the solar photovoltaic panel converts energy into electric energy through the control circuit; the microcontroller and the communication circuit carry out circuit calibration processing and signal access processing on peripheral signals; the Beidou positioning system comprises a Beidou antenna and a Beidou receiver, wherein the Beidou antenna receives and demodulates electromagnetic wave signals transmitted by a satellite into signals identified by the receiver; and the Beidou receiver converts the signals received by the antenna so as to calculate the position coordinate.
In a further embodiment, the solar photovoltaic panels 1 are installed on two sides of the monitoring device 3, wherein the solar photovoltaic panels 1 are hinged to the monitoring device 3, so that the lighting angle can be adjusted, the solar photovoltaic panels can be fully contacted with sunlight, and energy storage is facilitated; and the monitoring device 2 is fixed on the transmission tower through a base.
In a further embodiment, the public network base stations process the receiving and sending of mobile signals through the wireless modem, in a tower area, the plurality of public network base stations and the Beidou positioning system in the monitoring system form a honeycomb network, and the mobile communication signals are transmitted by controlling the mutual transmission and reception of signals between the Beidou antenna and the Beidou receiver.
In a further embodiment, the pole tower settlement and inclination monitoring method based on Beidou positioning is characterized by comprising the following steps of:
and 2, checking the positioning parameters.
In a further embodiment, in step 1, the loop delay of signal propagation is completed through data information transmission between the monitoring device and the beidou receiver, the monitoring device transmits the outbound signal with the time stamp, the beidou receiver receives the outbound signal, transmits the inbound signal after detecting the fixed time stamp, and after receiving the inbound signal, the monitoring device obtains the total propagation delay of the signal in the loop according to the difference between the receiving time and the transmitting time, further obtaining the following mode:
in the formula, T General (1) Represents the total propagation delay; t is 1 Signal propagation time delay of representation monitoring device and Beidou receiver
Delay; 2D represents the distance between the antennas; c represents the speed of light; t is a unit of 2 The time length from the Beidou receiver to the antenna port of the Beidou receiver for transmitting the response signal is shown.
In a further embodiment, the positioning calibration coordinates in step 2 are coordinates in the geodetic system, and are converted into a center-of-gravity coordinate system through two times of coordinate transformation to perform calculation, where the conversion formula is as follows:
wherein x, y and z represent geodetic coordinates; h is a total of 0 Represents a translation; z is a radical of 1 Denotes z coordinate minus h 0 Obtaining the translation;
further translating according to coordinates under a geodetic system by h 0 Rotating the carrier course angle, the pitch angle and the roll angle for three times to obtain a coordinate system of the carrier; the expression pattern is as follows:
in the formula, x 2 、y 2 、z 2 Representing the angular coordinate of the course of the carrier; x is the number of 3 、y 3 、z 3 Representing a pitch angle coordinate; x is a radical of a fluorine atom 4 、y 4 、z 4 Representing roll angle coordinates; alpha is alpha f Representing an aircraft heading angle; beta is a f Representing a pitch angle; gamma ray f The roll angle is indicated.
In a further embodiment, the tilt angle in step 1 is calculated as follows:
η＝1000tan(|α|)
wherein η represents the amount of tilt; α represents the tilt angle of the entire tower.
In a further embodiment, the method for monitoring the tower settlement inclination comprises the following steps:
step 3, judging the running state of the system through system self-checking, and closing the tower inclination monitoring system if the system is abnormal; if the result is normal, the next step is carried out;
step 4, judging the running state of the communication circuit, and closing the tower inclination monitoring system if the communication circuit is abnormal; if the result is normal, the next step is carried out;
step 5, collecting pole tower settlement and inclination monitoring information;
step 6, judging the command receiving of the main node, if no command exists, returning to the step 5, and if the command exists, carrying out the next step;
step 7, judging the running state of the network; if the result is normal, the next step is carried out, and if the result is abnormal, the step 2 is fed back;
and 8, sending tower settlement and inclination monitoring data.
In summary, the present invention has the following advantages: the system adopts a solar power supply mode, ensures that the system can continuously run for a long time under the outdoor environment, and can forward real-time on-site monitoring data and early warning information to a monitoring center in real time so as to facilitate the remote on-line monitoring system.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (4)
1. The utility model provides a shaft tower settlement slope monitoring system based on big dipper location which characterized in that includes following module:
the monitoring device acquires the horizontal vertical displacement and inclination angle data of the tower through the Beidou terminal;
the Beidou reference station is used for high-precision positioning and checking;
a public network base station for signal transmission;
the monitoring device comprises a solar photovoltaic panel, a microcontroller, a Beidou positioning system and a communication circuit; the solar photovoltaic panel converts energy into electric energy through the control circuit; the microcontroller and the communication circuit carry out circuit calibration processing and signal access processing on peripheral signals; the Beidou positioning system comprises a Beidou antenna and a Beidou receiver, wherein the Beidou antenna receives and demodulates electromagnetic wave signals transmitted by a satellite into signals identified by the receiver; the Beidou receiver converts the signals received by the antenna so as to solve the position coordinates;
the monitoring device transmits the outbound signal of the time mark, the Beidou receiver receives the outbound signal, transmits the inbound signal after detecting the fixed time mark, and after receiving the inbound signal, the monitoring device obtains the total propagation delay of the signal in the loop according to the difference between the receiving time and the transmitting time, and further obtains the following mode:
in the formula, T General assembly Represents the total propagation delay; t is 1 Representing the signal propagation time delay of the monitoring device and the Beidou receiver; 2D represents the distance between the antennas; c represents the speed of light; t is 2 The time length from the Beidou receiver to the antenna port of the Beidou receiver for transmitting the response signal is represented;
the solar photovoltaic panels are arranged on two sides of the monitoring device, so that the solar photovoltaic panels can be fully contacted with sunlight and are convenient for energy storage; the monitoring device is fixed on the transmission tower through the base.
The public network base stations process the receiving and sending of mobile signals through the wireless modem, in a tower area, a plurality of public network base stations and the Beidou positioning system in the monitoring system form a honeycomb network, and the mobile communication signals are transmitted and received by controlling the mutual transmission and receiving of signals between the Beidou antenna and the Beidou receiver.
2. A pole tower settlement and inclination monitoring method based on Beidou positioning is characterized by comprising the following steps:
step 1, acquiring horizontal vertical displacement and inclination angle data of a tower;
the inclination angle in step 1 is calculated as follows:
η＝1000tan(|α|)
wherein η represents the amount of tilt; alpha represents the integral inclination angle of the tower;
step 2, checking positioning parameters;
step 2 obtains the distance relation between the pole tower and the satellite according to the Beidou positioning, and further calibrates the position parameters, and the expression mode is as follows:
in the formula, R 1 Indicating tower and satelliteThe distance between them; x 1 、Y 1 、Z 1 Each represents a position coordinate of the satellite; x is the number of 2 、y 2 、z 2 All represent the position coordinates of the tower; r is r Representing the real distance from the satellite to the tower; r d Representing the ionosphere; r w Representing errors caused when the calculation data is acquired;
the positioning calibration coordinates in the step 2 are coordinates in a geodetic system, and are calculated after two times of coordinate transformation and conversion into a station center coordinate system, wherein the conversion formula is as follows:
wherein x, y and z represent coordinates of a geodetic system; h is 0 Represents a translation; z is a radical of 1 Denotes z coordinate minus h 0 Obtaining the result by translation;
further according to the coordinates under the earth system, the earth system is translated by h 0 Rotating the carrier course angle, the pitch angle and the roll angle for three times to obtain a coordinate system of the carrier; the expression mode is as follows:
in the formula, x 2 、y 2 、z 2 Representing the angular coordinate of the course of the carrier; x is a radical of a fluorine atom 3 、y 3 、z 3 Representing a pitch angle coordinate; x is a radical of a fluorine atom 4 、y 4 、z 4 Representing roll angle coordinates; alpha (alpha) ("alpha") f Representing an aircraft heading angle; beta is a f Representing a pitch angle; gamma ray f Represents the roll angle;
the calculation of the tilt angle in step 1 is as follows:
η＝1000tan(|α|)
wherein η represents the amount of tilt; α represents the tilt angle of the entire tower.
3. The pole tower settlement and inclination monitoring method based on Beidou positioning as set forth in claim 2, wherein in the step 1, the loop time delay of signal propagation is completed through data information transmission between the monitoring device and the Beidou receiver, the monitoring device transmits the outbound signal of the time mark, the Beidou receiver receives the outbound signal, when the fixed time mark is detected, the inbound signal is transmitted, after the monitoring device receives the inbound signal, the total propagation time delay of the signal in the loop is obtained according to the difference between the receiving time and the transmitting time, and the following method is further obtained:
in the formula, T General assembly Represents the total propagation delay; t is a unit of 1 Signal propagation time delay of representation monitoring device and Beidou receiver
Delay; 2D represents the distance between the antennas; c represents the speed of light; t is 2 The time length from the Beidou receiver to the antenna port of the Beidou receiver is represented.
4. The pole tower settlement and inclination monitoring method based on Beidou positioning as set forth in claim 2, is characterized in that the pole tower settlement and inclination monitoring method comprises the following steps:
step 1, starting a tower inclination monitoring system;
step 2, performing self-checking judgment on the running state of the monitoring system;
step 3, judging the running state of the system through system self-checking, and closing the tower inclination monitoring system if the system is abnormal; if the result is normal, the next step is carried out;
step 4, judging the running state of the communication circuit, and closing the tower inclination monitoring system if the communication circuit is abnormal; if the result is normal, the next step is carried out;
step 5, collecting pole tower settlement and inclination monitoring information;
step 6, judging the command receiving of the main node, if no command exists, returning to the step 5, and if the command exists, carrying out the next step;
step 7, judging the running state of the network; if the result is normal, the next step is carried out, and if the result is abnormal, the step 2 is fed back;
and 8, sending tower settlement and inclination monitoring data.
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| CN114061539A (en) * | 2021-11-16 | 2022-02-18 | 国网江苏省电力有限公司电力科学研究院 | Beidou positioning-based electric power tower inclined settlement monitoring system and method |
| CN114964158B (en) * | 2022-05-17 | 2024-04-12 | 中国电建集团贵州电力设计研究院有限公司 | Distribution network pole tower deformation monitoring method based on Beidou high-precision unmanned aerial vehicle positioning |
| CN115077481A (en) * | 2022-06-10 | 2022-09-20 | 广州市赛皓达智能科技有限公司 | Pole tower inclination monitoring system based on LoRa wireless modulation technology |
| CN115235424A (en) * | 2022-06-30 | 2022-10-25 | 华能青铜峡新能源发电有限公司 | Fan tower barrel inclination online monitoring method based on Beidou differential positioning |
| CN116033441B (en) * | 2023-03-30 | 2023-06-20 | 江西农业大学 | Environment geographic information monitoring network and updating method thereof |
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| CN105136117A (en) * | 2015-07-26 | 2015-12-09 | 安徽彼德森电气设备有限公司 | Beidou communication system-based electric tower inclination monitoring system |
| CN109407128A (en) * | 2018-10-18 | 2019-03-01 | 国网福建省电力有限公司 | A kind of electric power line pole tower system for monitoring displacement and method |
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